*Call For Participation: workshop on Critical GIS* This is a call for participation in a workshop on emerging theories in Critical Cartography and GIS to be held during the North American Cartographic Society (NACIS) meeting. For consideration, we are seeking emergent work and epistemological interventions with respect to geographic information (e.g., spatial media). Contributions might apply theoretical insights to spatial knowledge politics not only of the visual, but also to processes that influence the visual and society at large. For example, how are current theories of Critical GIS related to data provenance, data handling, spatial knowledge politics, narrative framings of the world, or spatial decision making procedures? How are processes of GI acquisition and analysis related (or not) to the visual outputs they often produce? How have these processes come to be mediated and by what sociotechnical systems? Our goal is not to rehash the substantive critiques of the 1990’s; powerful and influential though they may be. Rather, we wish to solicit established and emerging scholars to think through how new social theoretical frames, new domains of knowledge production, and new technologies may fit together to produce new knowledges. We are especially interested in expanding our ideas of both what ‘critical’ and ‘geospatial’ might mean in relation to fields like the digital (geo)humanities, Science and Technology Studies, library science, spatial cognition, citizen science, smart cities and Internet of Things, political ecology, and others. We intend for this workshop to catalyze discussions with long-term implications for the discipline. To facilitate such fresh approaches to the field(s), we encourage co-authored, rather than single-authored, contributions. To this end, we expect workshop participants to submit for consideration to a special issue of International Journal of GIS, which we will commence organizing in late 2017. The workshop will be held at McGill University on Friday October 13, concurrent with Workshop Day at NACIS in Montreal. Please respond to this call and specify which of the following applies to you: 1. You would like us to partner you with someone who has a different view point from you and we think you would come up with interesting ideas together, related to critical GIS. 2. You have a co-author who has a different view point who you have never written with and you would like to write with. 3. You can attend the NACIS workshop. To be considered for this workshop, please submit a 500-1000 word (1-2 pages) short paper outlining your position with respect to new theories of Critical GIS and/or Cartography by August 31. Please submit the short papers to renee.sieber@mcgill.ca. We recognize that the timing between the end of August and the middle of October is quite short. Therefore, all people who submit short papers will be accepted to attend the NACIS workshop. *Organizers*: Renee Sieber, Associate Professor, McGill University Luke Bergmann, Assistant Professor, University of Washington Seattle Ryan Burns, Assistant Professor, University of Calgary Britta Ricker, Assistant Professor, University of Washington Tacoma Jim Thatcher, Assistant Professor, University of Washington Tacoma -- Ryan Burns, PhD Dept of Geography University of Calgary http://burnsr77.github.io